Understanding data rate and bandwidth

[DavidEGrayson]

Hello. We discussed the meaning of Table 22 of the L3G4200D’s datasheet in another thread:

L3G4200D: Meaning of Cut-Off in datasheet

Hello. I think you have the right idea for ODR. If you look earlier in the datasheet, it defines ODR as Output Data Rate. For what it’s worth, here are the gyro settings we use in our MinIMU-9-Arduino-AHRS example code and it works fine for that application: gyro.writeReg(L3G_CTRL_REG1, 0x0F); // normal power mode, all axes enabled, 100 Hz gyro.writeReg(L3G_CTRL_REG4, 0x20); // 2000 dps full scale The first page of the datasheet says there are “integrated low- and high-pass filters with …

You do not have to read from the gyro at any particular rate.

–David